Improvement in harness-operating mechanism for looms



duced tapes @met @time Letters Patent No. 99,17 6, dated Jmruavry 25,1870.

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IMPROVEMENT IN HARNESSOPERATING MECHANISM FOR LOOMS,

The Schedule referred to in these Letters Patent sind making part Of theSame- 1,'Gnoncn S. Flinnnxnn, of Indianapolis, in the county otMa-rion,and State ot' Indiana, have invented certain Improvements inHarness-Motion for Looms, of which -the following is a specification.

setting up the pattern-chain, the object being the pro.

duction cfa loom that is simpler' and cheaper in construction than thoseheretofore in use, and equally eflicieut in weaving any desired pattern.

Description of the Accompanying Drawings.

Figure 1 is a side elevation of part of the front end of the loom,showing the form and arrangement of the upright treadles orharness-levers, and the construction and arrangement of my improvedmechanism for operating or calling the treadles, and the relationthereto ofthe pattern-cylinder or chain by which the operation ot' themechanism is controlled.

Figure 2 is an end view of the same.

Similar letters of reference indicate corresponding parts in the severalfigures.

As this invent-ion relates wholly to the construction, arrangement, andoperation ofthe device for actuating or calling the treadles or leversto which the harness is attached, the treadles being attached at the endof' the machine, substantially as in the ordinary cam-loom, no more oftheloom is shown in the drawing than sufiicient to exhibit the relationoi' my device thereto.

General Description.

A is partof the front en'd of the frame.

B, the arches, which areniade with a projection, B', one of which isleft off to `show more clearly the construction and arrangement of mydevice for operating the treadles C, the latter heilig hung on a piu orjournal, a., as a fulcrunnin jaws projecting from Dthe end of the frame,much in the usual manner.

' e c arethc slices, against which the rocking cam D works, to givereciprocating motion to the treadles O.

'Ihe cams D, equal in number to the treadlcs, are hung on a shaft, fi,and are provided with an arm, d, to the upper end of which one end ofthe longitudinal reeiprocating jacks E is loosely pivoted, as shown.

The jacks E have square-shouhlered notches on both the upper and loweredges, with which the transversel reciprocating bars F engage, to givethem reciprocat` ing motion, and thus imparting a rocking motion to thecams D.

The jacks E are raised and lowered to engage with reciprocating bars F,by means otliftingjacks G, which lare hung on a shaft or rod,'n, ltheouter end working between guides o, which also serve as guides to theouter ends of .the jacksE.

The pattern-chain or cylinder H is constructed in the usual manner, andhung under the lifting-jacks G, in such a manner that the pins S of thecylinder or described, the cylinder being arranged near the pin orfulcra of the lifting-jacks, in order to secure sufiieient movement oftheir outer ends without making the rolls of the chain too large, orpins in the cylinder too long.

The reciprocating bars F are operated by means of connecting-rods I,attached to their ends and to the ends of a vibratory lever, J, themovement of' the latter being imparted from an eccentric, K, on thelower shaft L of the loom, being the same shaft that is usually employedto' give motion to the pickers, and in some cases also to the-harness inordinary cam-looms, the eccentric working between lugs or shoes on theconnecting-rod M, the upper end of which is attached to a short arm, J',attached at right angles to the ceutre of the vibrating lever J.

Motion is imparted-to the pattern-cylinder or chain H by means of aneccentric, N, on the upper or crankshaft O and connecting-rod P,attached by its upper end to one arm of the angular lever Q, to theother Yarm of which is attached a hooked pawl that engages with aratchet on the shaft of thel cylinder H or pattern-chain, carried in theusual manner.

harness'to open the shed of the chain or warp, as required to weave anydesired pattern, is as follows:

The pattern-eylinilecH or chain being s et up for any desired pattern,the pins S of the cylinder or rolls of the ehaim-as it is'revolved,operate the lifting-jacks G, toraise and lower the jacks E to engagewith the reciprocating bars F; thus, when the long pins S of thecylinder (or, if a chain is used, the large rolls,) raise thelifting-jacks G, which in turn raise the jacks E, so that the upperreciprocating bar F will engage with the notches in their upper edgesand give them a longitudinal reciprocating motion, this in turn impartsa rocking motion to the cam D, the latter operating on the shoes e e ofrthe treadles O, giving them the vibrating motion that raises and lowersthe harness.

-The notches in the upper and lower edges of the jacks vE are arrangedin the proper position, and made of sufficient length to allow them, andalso the cams D, to remain motionless during a sutcicnt period, whilethe reciprocating bars F are returning on their;I backward stroke, topermit the pattern-chain or cylinder to be shifted; the outer ends ofthe cams inthe mean time resting against the shoulder at the lower endof the the rolls of the chain will operate them, as hereafterA The o)eration of m device to call or o )crate the shoe, sovas to hold thelever and harness motionless While the shuttle passes through the shed.

A short pin or small roll raises the jacks E just between thereciprocating bars F, so that neither of them will engage with thenotches in the jacks, which, remaining motionless, leave the cams D andtreadles G at rest. Where no pin`or roll is used, the lifting andvcalling-jacks drop down,.so that the lower reciprocating bar F willengage with the notches on the 'lo'tver side of the jacks E, whichoperates them in the'same manner as the upper reciprocating bar.

' The advantages secured by the comparatively simple construction andarrangement of the rocking cams working onthe shoes c e ofthe treadlesG, these cams` being actuated by reciprocating bars F that engage ,withlongitudinal reciprocating jacks E, attached to It will also be apparenttoweavers that by means of the arrangement of the rocking-cams D andshouldered shoes e e, the cloth may be woven face-side up or down, asmay be required, without any change in any part of the mechanism otherthan tostart the loom with the harness raised, for weaving the face-sidedown, and Wit-h them lowered to weave face-side up.

O laim.

`1. The rocking-cams D, in combination with the shouldered shoes e e ofthe upright treadle 0, `all con- 'structed and arranged substantially asand for the purpose set forth.

2. The combination of the cams D, hung in a vertical plane over thefnlcra of treadles C, lifting-jacks G, longitudinal reciprocating jacksE, reciprocating bars F, with the pattern-chain or cylinder H, allarranged and operating substantially as and for the purpose set forth.

' GEORGE S. FAULKNER.

l/Vituesses D. W. KNEFLER, O. F. MAYHEW.

